331122111101012 has 192 divisors, whose sum is σ = 769558428076032. Its totient is φ = 120689587200000.

The previous prime is 331122111100933. The next prime is 331122111101069. The reversal of 331122111101012 is 210101111221133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 645033308 + ... + 645546444.

It is an arithmetic number, because the mean of its divisors is an integer number (4008116812896).

Almost surely, 2^{331122111101012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331122111101012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384779214038016).

331122111101012 is an abundant number, since it is smaller than the sum of its proper divisors (438436316975020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331122111101012 is a wasteful number, since it uses less digits than its factorization.

331122111101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513918 (or 513916 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 331122111101012 its reverse (210101111221133), we get a palindrome (541223222322145).

The spelling of 331122111101012 in words is "three hundred thirty-one trillion, one hundred twenty-two billion, one hundred eleven million, one hundred one thousand, twelve".